Maths practice for 11-year-olds. - page 184 of 222
Number of problems found: 4421
- Egg cooking
Cooking one egg takes 4 minutes. How many minutes does it take to cook four eggs? - Unit conversion
How to calculate 2/5 m = x dm? - Waste removal
The family house residents pay for a 120-liter plastic container for waste per week. How much waste do I produce per year? How much will they pay annually for its removal if their garbage is taken out once a week and one removal costs 3.32 euros? - Trip cost
A liter of gasoline costs 1.516 euros. The average consumption of the KOLO car is 6.9 l per hundred kilometers. The car has a 40-liter tank. How much will the car owner pay for the trip from Zilina to Prague and back if he follows the 413km long route? - School scores
Dorothy had a total of 22 scores in her school book. She had three times less score 1 than score 3. She had only two scores 2. How many scores, 1 and 3, did Dorothy have in her school book? - Paper recycling
A recycled paper made from 1.5 tons of old paper is equal to that made from 10 trees. How much paper do pupils collect to save 100 trees from falling? - Equation solving
Create a number snake from the equation and solve: 2x - 5 = 7 4x + 1/3 = 7 3 (x-2) +4 = 7 - Soap cost
A box with six pieces of soap costs x crowns. How much will five pieces of soap cost? - Distance in time
A speedway racer goes at an average speed of $v kilometres per hour. What distance will he cover in 12 minutes? - Total potatoes
2/5 q of potatoes were sold in the first hour, 5/6 q in the second hour, and 40 kg in the third hour. How many kilograms of potatoes were in total? - Water height
The bottom is 25 m wide and 10 m long, and there is 37640 hl of water. What height does the water reach? - Cheese proportion
Mom makes sheep's cheese and cow cheese spread in a 5:3 ratio for two children. What proportion do they have to mix sheep cheese and cow cheese if they make the same spread in the school cafeteria for 350 children? - Ratio simplification
Adjust to basic shape: a) 3kg 40g b) 0.9:1.8 - Room painting cost
The painter will paint a room 7 m long, 4.5 m wide, and 3 m high. He charges CZK 27 per 1 m². How much do we pay painters to paint a room? - Oats for horses
The farmer has a supply of oats for 5 horses for 12 days. Calculate how many horses would consume the same supply of oats in 1 day. Calculate how many days it would take 6 horses to consume the same oats supply. (The daily ratio for one horse does not cha - Washing elephants
An experienced tamer will wash an elephant in 40 minutes. It takes a temporary worker 2 hours. How long in a minute will a tamer and a temporary worker wash three elephants together? - Seedling standard
Three gardeners planted 3,555 seedlings in one day. The first met the standard. The second exceeded the standard by 120 seedlings and the third by 135 seedlings. What was the daily norm? - Number calculation
Calculate a number whose 3/4 is two less than 2/5 of its double. - Number puzzle
Find the number whose fifth increased by 8 equals 12. - Father age
His father was four years as old as one-fifth of his age now eight years ago. How old is she?
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